Hello everyone, I have a heap allocated array arr. The allocation in arr is freed by using a pointer ptr. Therefore, if(arr) statement should return a false value. But practically it returns a true value and go ahead to call the free(arr) to free up the allocated space again. Resultantly, the program crashed.
Code:#include<stdio.h> #include<stdlib.h> int main() { int* arr = (int*)malloc(3 * sizeof(*arr)); arr[0] = 12; arr[1] = 61; arr[2] = 40; int* ptr = arr; free(ptr); ptr = nullptr; if(arr) free(arr); arr = nullptr; return 0; }
Originally Posted by Bjarne Stroustrup (2000-10-14)
